1. She is not doing ___________ in the garden, just walking with her dog.

A. anything B. nothing C. something D. one thing

2. It is twelve o’clock, Mai Anh. Let’s ___________home.

A. goes B. to go C. going D. go

3. My brother and I ___________ our grandmother next weekend.

A. visit B. am going to visit C. am visiting D. are going to visit

4. ___________ he plays the guitar!

A. What beautiful B. How beautifully C. How beautiful D. What beautifully

5. I don’t want much sugar in coffee. Just ___________, please.

A. a little B. little C. few D. a few

6. At an intersection, we must___________.

A. ride quickly B. go fast C. slow down D. run out

7. What’s___________ lunch? -There is some rice and some meat.

A. for B. in C. to D. at

8. Is there anything to drink? ~ I’m___________.

A. hungry B. tired C. thirsty D. cold

9. Look ___________ that strange man! He is looking ___________ Lan but she isn’t here.

A. for/ at B. at/ for C. at/ after D. at/ on

10. You are too fat. You shouldn’t eat much___________.

A. meat B. fruit C. fish D. vegetables

11. ___________ do people need more food? ~ Because there are more people.

A. What B. Why C. Where D. How

12. Where is your mother? ~ She is in the kitchen. She___________ dinner.

A. cooks B. cooking C. cooked D. is cooking

13. How___________ do you brush your teeth? ~ Three times a day.

A. many B. much C. usually D. often

14. ___________ straight across the road.

A. Don’t run B. Not run C. No running D. Can’t run

15. When it becomes hot, people often feel ___________.

A. hungry B. thirsty C. happy D. worried

16. Of the three students, Nga is ___________.

A. the best B. good C. better D. well

17. What is your favorite food? ~____________

A. My favorite food is orange juice. C. I like coffee and lemonlade.
B. Orange juice is my favorite food. D. I like chicken and fried fish.

18. They ___________ late for school.

A. never are B. don’t C. are never D. never

19. ___________ are you going to stay here? ~ For a week.

A. How often B. How long C. How many D. How far

20. Miss Trang always ___________ her own clothes.

A. does B. wants C. cooks D. makes

vì 927 chia hết cho 9 =>200a chia hết cho 9

mà 2 +0+0=2

=>a=7

Gọi a là số tự nhiên cần tìm. 
a chia 17 dư 5 => a = 17m + 5 
a chia 19 dư 12 => a = 19n + 12 
Do đó: 
a + 216 = 17m + 221 chia hết cho 17. 
a + 216 = 17n + 228 chia hết cho 19 
=> a + 216 chia hết cho 17 và chia hết cho 19. 
mà a là số tự nhiên nhỏ nhất nên a + 216 là BCNN của 17 và 19. 
BCNN(17 , 19) = 17.19 = 323. 
=> a + 216 = 323 
=> a = 323 - 216 
Vậy a = 107. 

1.The doctors (be,not) ..aren't... well.

2.Mary and Tom ( not,go) ..don't go... to school.

3.Jack (not,be) ..isn't... hard - working .

4.Jerry and I ( listen) ...listen. to music.

nam has breakfast at 7:30 each morning

câu phủ định: Nam doesn't have breakfast at 7:30 each morning

câu nghi vấn: Does Nam have breakfast at 7:30 each morning

Trong câu bị động by + O luôn đứng sau adverbs of place (trạng từ chỉ nơi chốn) và đứng trước adverbs of time (trạng từ chỉ thời gian).

last week : trạng từ chỉ thời gian

\(\Rightarrow\)by my father sẽ đứng trước last weak

this bike has been repaired by my father since last week là câu đúng